| 000 | 00657nam a22001817a 4500 | ||
|---|---|---|---|
| 003 | BD-DhUL | ||
| 005 | 20190516103542.0 | ||
| 008 | 190516s1931 enk||||| b||| 00| 0 eng d | ||
| 040 |
_aBD-DhUL _cBD-DhUL |
||
| 082 |
_a384.5 _bDER |
||
| 110 | 0 | _aDepartment of Scientific and Industrial Research. | |
| 245 | 0 |
_aReport of the radio research board or the period ended 31 st december 1930/ _cDepartment of Scientific and Industrial Research. |
|
| 260 |
_aLondon : _bMajesty's Stationery Office, _c1931. |
||
| 300 |
_aiii, 90 p. : _bill. ; _c23 cm. |
||
| 504 | _aIncludes bibliographical references . | ||
| 650 | 0 | _aRadio research . | |
| 942 |
_2ddc _cBK |
||
| 999 |
_c248193 _d248193 |
||